I would agree with this. The product turned out to be substantially different than what was originally ordered; not only in hashrate but in power consumption. Nothing was ever stated about 220V being a requirement. Now it apparently is.
I guess you understanding of the product specification is progressing since you ordered the SP30. 220V is not a requirement, is a feature. hosting is only an OPTION.
I did not see any changes in the power supply specs since Roadstress' group buy was announced.
If you can't power them because of _your_ circuits layout or what you initially thought to use to power them up .. it shouldn't be covered by any manufacturer.
The power requirement was stated as being 2500W (it still is on the website). The input rating is specced at 90-264VAC. Clearly a 15A/120V circuit (2 of them) would be sufficient to run this device and people have made purchasing decisions based on this.
Now Spondoolies has announced that the power spec has changed to 3000W. It was never 3000W; it was 2500W up to this point. Two 15A/120V circuits are no longer sufficient to run it; they cannot sustain 3000W.